From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arjan van de Ven Subject: Re: [patch 1/2] input: introduce a tougher i8042.reset Date: Thu, 5 Feb 2009 16:35:13 -0800 Message-ID: <20090205163513.1a5d7308@infradead.org> References: <20090204191540.2d6abd87@infradead.org> <20090204191631.21783c62@infradead.org> <20090205135229.e4d5efc3.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from casper.infradead.org ([85.118.1.10]:34500 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753723AbZBFAe6 (ORCPT ); Thu, 5 Feb 2009 19:34:58 -0500 In-Reply-To: <20090205135229.e4d5efc3.akpm@linux-foundation.org> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Andrew Morton Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org On Thu, 5 Feb 2009 13:52:29 -0800 Andrew Morton wrote: > On Wed, 4 Feb 2009 19:16:31 -0800 > Arjan van de Ven wrote: > > > Some touchpads don't reset right the first time (MSI Wind U-100 for > > example). This patch will retry the reset up to 5 times. > > Sigh, real life sucks. I wonder what the windows driver does. I have no idea; but this worked for me. I bet the windows driver just retries as well. > > > In addition, this patch also adds a module parameter to not treat > > reset failures as fatal to the usage of the device. This prevents > > a touchpad failure from also disabling the keyboard.... > > > > Is there any reason why we shouldn't just do this all the time? > > IOW, is there any benefit in marking the 8042 as dead? if it really is not there, then the kernel later will stall talking to it.... for the "normal" headless server case. At least I suppose. The input people need to jump in on this one.. I didn't want to do a mass behavior change on something this fragile. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org